Abstract:We address the joint optimization of multiple stream joins in a scale-out architecture by tailoring prior work on multiway stream joins to predicate-driven data partitioning schemes. We present an integer linear programming (ILP) formulation for selecting the partitioning and tuple routing with minimal probe load and describe how routing and operator placement can be rewired dynamically at changing data characteristics and arrival or expiration of queries. The presented algorithms and optimization schemes are … Show more
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